| datetime | cruise_id | depth | wind_speed | wind_dir | wave_height | cloud_cover_10th | ropeless_id | surf_temp_f | lon_start | lat_start | lon_end | lat_end | notes | participants | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| deploy | |||||||||||||||
| C2307-1 | |||||||||||||||
| J11 | |||||||||||||||
| N12 | |||||||||||||||
| C2307-2 | |||||||||||||||
| K08 | |||||||||||||||
| J07 | |||||||||||||||
| recover | |||||||||||||||
| C2307-1 | |||||||||||||||
| J11 | |||||||||||||||
| N12 | |||||||||||||||
| C2307-2 | |||||||||||||||
| K08 | |||||||||||||||
| J07 | |||||||||||||||
Cruise Report: 2023-07-24 : 07-26
Pot survey
General notes
Release cages were used at all sites in this survey.
Participants
- Mike O’Brien (UMCES)
- Evan Kostelecky (UMCES)
- Capt. Brendan Harrington (F/V Integrity)
- Ethan N (F/V Integrity mate)
Pot deployment cruise, 2023-07-25
Overall
- 02:30 Meet at F/V Integrity, prepare for departure.
- 02:49 Depart dock, transit to C2307-1 (control site).
- 04:55 Arrive at C2307-1. BH begins rigging pots.
- 05:26 Begin deploying pots.
- 05:29 Finish deploying pots, transit to J11 (experimental turbine site).
- 06:06 Arrive at J11.
- 06:06 Begin deploying pots.
- 06:09 Finish deploying pots, transit to N12 (experimental turbine site).
- 06:34 Arrive at N12.
- 6:34 Begin deploying pots.
- 6:34 Finish deploying pots, transit to C2307-2 (control site).
- 07:01 Arrive at C2307-2.
- 07:01 Begin deploying pots.
- 07:03 Finish deploying pots. Transit to K08 (experimental turbine site).
- 08:02 Arrive at K08.
- 08:02 Begin deploying pots; release cage BCB included.
- 08:03 Finish deploying pots, transit to J07 (experimental turbine site).
- 08:15 Arrive at J07.
- 08:15 Begin deploying pots.
- 08:17 Finish deploying pots. Return to West Ocean City, MD.
- 10:36 Arrive in West Ocean City, MD.
Description
Survey deployment
Capt. Brendan Harrington and mates retrieved the pots from the Maryland Coastal Bays program and stacked the pots on the boat untied. Capt. Harrington used the period of transit between sites to tie the next string of pots on. Buoys were not removed from the release cage at site C2307-1. As a result, the rig was recovered using the redundant buoy system
Wind speed was negligible and sea state was predominantly long-period 3 ft rollers. Cloud cover was 10% of the sky. Surface temperature as reported by the satellite chart plotter was 77-78 F. Control sites ranged in depth from 92-136 ft, with turbine sites ranging from 93-116 ft.
Onset HOBO temperature loggers were attached to the ropeless cages and deployed at a control (C2307-2) and turbine (K08) site to log bottom temperature at 10 minute intervals during deployment.
Pot recovery cruise, 2023-07-26
Overall
- 02:30 Meet at F/V Integrity, prepare for departure.
- 02:40 Depart dock, transit to C2307-1.
- 04:53 Arrive at C2307-1.
- 04:53 Near block recovered.
- 05:02 Release cage (far); pot recovery complete. Transit to J11.
- 05:40 Arrive J11. Signal release cage.
- 05:43 Release cage recovered.
- 05:51 near block recovered; pot recovery complete. Transit to N12.
- 06:23 Arrive N12. Begin pot recovery approach.
- 06:25 Release cage buoys recovered.
- 06:26 Release cage recovered.
- 06:36 Near block recovered; pot recovery complete. Transit to C2307-2.
- 07:16 Arrive C2307-2. Begin pot recovery approach.
- 07:19 Release cage buoys recovered.
- 07:21 Release cage recovered.
- 07:27 Near block recovered; pot recovery complete. Transit to K08.
- 08:20 Arrive K08. Begin pot recovery approach.
- 08:38 Release cage recovered.
- 08:45 Near block recovered; pot recovery complete. Transit to J07.
- 09:04 Arrive J07. Begin pot recovery approach.
- 09:05 Release cage buoys recovered.
- 09:07 Release cage recovered.
- 09:15 Near block recovered; pot recovery complete.
- 09:15 End survey, return to West Ocean City, MD.
- 11:30 Arrive in West Ocean City, MD.
Description
Wind speed was light, less than 5 kts from the west. Waves were choppier than the previous day but still calm at 1-2 ft. Sky was clear of clouds. Surface temperature as reported by the satellite chart plotter was 77-78 F.
HOBO temperature loggers were successfully recovered from the rigs at C2307-2 and K08.
Dominant species were black sea bass (34) and rock crab (23). 38 of the 89 recovered pots were empty.
There was a significant difference in black sea bass catch between near and far sections of the lines (Poisson GLM, \(p <\) 0.05), but no difference between turbine and control sites (Poisson GLM, \(p >\) 0.05).
Total length (mm) and weight (g) of all black sea bass were recorded. Total lengths of other fish species were also recorded. Black sea bass ranged in total length from 192 - 340 mm, with a mean of 238 mm (minimum legal size 320 mm). Weights ranged from 80 - 420 g, mean of 190 g.
Black sea bass were similar in length and weight in the far pots as compared to near and turbine sites as compared to control sites (ANOVA, all \(p >\) 0.05).
Catch and size data summaries are shown in the sample summary section below.
Station information
Bottom temperature
Cruise map
Sample summary
Catch
| Black sea bass catch | |||||||
| N | min | average | med | max | sd | retained | |
|---|---|---|---|---|---|---|---|
| June - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| June - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| July - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| July - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| August - 2022 - Control | |||||||
| far | |||||||
| near | |||||||
| August - 2022 - Project | |||||||
| far | |||||||
| near | |||||||
| April - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| April - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
| May - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| May - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
| June - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| June - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
| July - 2023 - Control | |||||||
| far | |||||||
| near | |||||||
| July - 2023 - Project | |||||||
| far | |||||||
| near | |||||||
July 2023 catch
The blank bars on the right show the count of pots with no catch.